I'm not sure why no one has come up with this file yet.. but I think it would be hot. Basically the file would force you to become a shemale that can only be attracted to other women.
It would make you want to be dominated by women and you would see the women as the ones wearing the pants in the relationship.
It would make it so you could never be attracted to men again, by transferring anything you find attractive about them into women.
all the while turning you into a shemale. I'm not great at writing scripts, but I'm sure someone with skills can make this juicy.
Perhaps even develop a series.